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--- src/trunk/translate/lang/zh.py	2010/05/17 13:23:56	14599
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+++ src/trunk/translate/lang/zh.py	2010/05/18 16:04:23	14600
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@@ -63,6 +63,8 @@
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         u"% ": u"%",
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     }
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-    length_difference = lambda cls, x: 10 - x / 2
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+    def length_difference(cls, length):
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+        return 10 - length / 2
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+    length_difference = classmethod(length_difference)
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     ignoretests = ["startcaps", "simplecaps"]